Throughout the history of the U.S.-ROK alliance, South Korea has faced abandonment fears stemming from the possibility that its great power sponsor would remove its troops from the Korean peninsula and end or weaken the alliance. South Korea’s fear is a reasonable reflection of historical events. In 1950, Kim Il Sung’s decision to invade South Korea depended on his belief that the United States would not come to Seoul’s rescue. Even today, South Korean fears of abandonment persist despite the current strength of the alliance. The U.S. is a global actor with an array of interests that make it difficult to maintain focus on any one relationship, no matter the importance. Since the United States has interests across the globe, it often has to react to unplanned circumstances that distract attention from declared policies and long-term strategies.